Subaru Legacy 2013 — technical service bulletin
Bulletin 02-143-13R · NHTSA communication 10094041 · issued Dec 3, 2013
Technical service bulletin
communication type
Engine
component
2013
model years
2
vehicle entries
Official summary
This bulletin provides information regarding a change made to the surface treatment applied to the oil control piston rings for 2.5l fb engines. The change was made as a result of some limited findings of unanticipated wear of these rings. Oil consumption will be higher than normal and consistent, if this wear occurs, the condition remains until repair. Unusual swings or variations in oil consumption are not consistent with this condition and may be the result of vehicle usage rather than the condition described here. Additional information is supplied in this bulletin to assist in the assessm
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.